Remember that any parts where you don’t have candle wax rubbed on, the paint will stick, making it hard to distress. If you want heavy distressing, cover more of your surface with wax.
Once I was happy with the amount of wax coverage, I added a coat of white paint. Don’t worry too much about your coverage. This is just a rough undercoat. In some parts I painted the whole area and in other places I blotched on the white. You can play with the layers to get the exact look you like.